McDonnell & Miller 318827 O-Ring For high-altitude applications

For high-altitude applications

Re-torquing an old 313200 gasket often results in an uneven seal and high failure rates under pressure

As the direct updated replacement for the obsolete 312900 model

though the system limit is often determined by the tubing or valve cores used (typically 800 psi for valve cores)

McDonnell & Miller 318827 O-Ring For high-altitude applicationsMaintain the integrity of your low water cut offs with the McDonnell & Miller 318827 O Ring. As a veteran technician, you know that a high pressure steam environment demands precise sealing. This square cut O ring, also recognized as Model 69 114, is the standard replacement part for the Series 69 Low Water Cut Off and E 8 level controls. Transitioning from older gasket styles to this new style O ring ensures a tighter, more reliable seal between the